Function roundDec

src/utils.js:362–371

(val, dec = 0)

// https://stackoverflow.com/a/48764436
// rounds half away from zero
export function roundDec(val, dec = 0) {
	if (isInt(val))
		return val;
//	else if (dec == 0)
//		return round(val);

	let p = 10 ** dec;
	let n = (val * p) * (1 + Number.EPSILON);
	return round(n) / p;
}

// https://stackoverflow.com/questions/14879691/get-number-of-digits-with-javascript/28203456#28203456
export function numDigits(x) {